Pass rate over time
The 101R's first-time pass rate has fallen 5.6 points since 2010, 76.6% to 71.0%.
What fails on a 101R
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
84 | 27.8 | 1.7× |
| brakes |
|
84 | 27.8 | 2.3× |
| steering and suspension |
|
58 | 19.2 | 2.4× |
| tyres and wheels |
|
25 | 8.3 | 1.8× |
| lamps and reflectors |
|
23 | 7.6 | 1.1× |
| suspension |
|
10 | 3.3 | 1.1× |
| fuel and exhaust |
|
7 | 2.3 | 1.3× |
| reg plates and vin |
|
5 | 1.7 | 1.5× |
| driving controls |
|
5 | 1.7 | 3.5× |
| audible warning (Horn) |
|
1 | 0.3 | 0.9× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the 101R beats 4 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the 101R.
Pass rate by registration year
Best year to buy used: 2008 (73.3% pass). Weakest: 2009 (68.1%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
TGB 101R FAQ
Is the TGB 101R reliable?
The TGB 101R is about average for its class: 71.5% of its 601 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4612 of 5426 models.
What does a 101R fail its MOT on most?
lighting and signalling — 28% of all defects recorded against failed 101R tests.
What is the best year of 101R to buy used?
By first-time pass rate, 2008-registered examples do best (73.3%) and 2009 worst (68.1%). Condition and history still trump the year.